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Subject: [Bug c++/98130] [11 regression] placement new fails on
 webkit-gtk-2.28.4 since r11-4745-g58c9de46541ade79
Date: Fri, 04 Dec 2020 18:11:51 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98130

--- Comment #12 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jakub Jelinek <jakub@gcc.gnu.org>:

https://gcc.gnu.org/g:78c4a9feceaccf487516aa1eff417e0741556e10

commit r11-5748-g78c4a9feceaccf487516aa1eff417e0741556e10
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Fri Dec 4 19:10:56 2020 +0100

    gimple: Return fnspec only for replaceable new/delete operators called =
from
new/delete [PR98130]

    As mentioned in the PR, we shouldn't treat non-replaceable operator
    new/delete (e.g. with the placement new) as replaceable ones.

    There is some pending discussion that perhaps operator delete called fr=
om
    delete if not replaceable should return some other fnspec, but can we
handle
    that incrementally, fix this wrong-code and then deal with a missed
    optimization?  I really don't know what exactly should be returned.

    2020-12-04  Jakub Jelinek  <jakub@redhat.com>

            PR c++/98130
            * gimple.c (gimple_call_fnspec): Only return ".co " for replace=
able
            operator delete or ".mC" for replaceable operator new called fr=
om
            new/delete.

            * g++.dg/opt/pr98130.C: New test.=